Sprinkler



FIG. 1 is a front elevational view of a sprinkler;

FIG. 2 is a elevational view thereof as viewed from the right side;

FIG. 3 is a elevational view thereof as viewed from the left side;

FIG. 4 is a of a top plan view thereof; and,

FIG. 5 is a perspective view thereof. 

The ornamental design for a sprinkler, as shown and described. 